diff --git a/wortschlucker/src/wortschlucker.py b/wortschlucker/src/wortschlucker.py
index cf31ac1..8e7f203 100755
--- a/wortschlucker/src/wortschlucker.py
+++ b/wortschlucker/src/wortschlucker.py
@@ -82,7 +82,7 @@ class ContentSubmission(sqlobject.SQLObject):
             short_name = url.split("/")[2]
             return """%s<a href="%s">%s</a>%s""" % (prefix, url, short_name, suffix)
         # surround all urls with html markup
-        mark_links = re.sub(r"(\A|\s|\()(https?://[\w/\?\.\#=;,_\-]*)(\)|\s|\Z)", get_link_markup, self.content)
+        mark_links = re.sub(r"(\A|\s|\()(https?://[\w/\?\.\#=;,_\-\~]*)(\)|\s|\Z)", get_link_markup, self.content)
         markup = genshi.input.HTML(mark_links) | genshi.filters.HTMLSanitizer()
         # the markup is now marked as "safe" -> genshi will output it literally
         return markup